Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3638053b076a4bd…

MALICIOUS

PDF

38.7 KB Created: 2020-05-15 17:30:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 618db144b83de0ede1e19f73aa9a9093 SHA-1: 234e6501c5f3180928cea308e2297117106d0872 SHA-256: e3638053b076a4bd02f630f6b97b672b0db4e133d63297fdbc937ed4b7f89e15
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, all structured similarly with numeric slugs, suggesting a link farm or SEO manipulation tactic. The presence of these links indicates an attempt to direct users to potentially malicious or deceptive content hosted on these external sites. No scripts were extracted from this sample.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mymissblue.com/uploads/1/3/1/3/131379033/131379033.html#cessna+340+silver+eagle+performance
    • http://tanahome.com/uploads/1/3/0/7/130775047/jilikaxetimuneboba.pdf
    • http://gofitdenver.com/uploads/1/3/0/6/130621130/2225660.pdf
    • http://ethanlogisticsllc.org/uploads/1/3/0/2/130287835/wumevow.pdf
    • http://brittanyroseveats.com/uploads/1/3/0/3/130323113/nolanitawu_wamaza.pdf
    • http://psychcollective.com/uploads/1/3/0/8/130813722/1457083.pdf
    • http://sanantoniosalsaon2.com/uploads/1/3/1/0/131070306/palewekuf.pdf
    • http://westlakeautocare.com/uploads/1/3/1/4/131410736/lidegi.pdf
    • http://extraeyesecurity.com/uploads/1/3/0/8/130813953/2192668.pdf
    • http://atlantaclassicstees.com/uploads/1/3/1/4/131411896/1006885.pdf
    • http://lisalenarz.com/uploads/1/3/0/3/130379194/d651d34b48bae.pdf
    • http://holistichealinggranada.com/uploads/1/3/0/7/130738940/1106482.pdf
    • http://crisme.com/uploads/1/3/0/8/130874368/kelunisawup.pdf
    • http://greenbridgeconsult.com/uploads/1/3/0/2/130289239/4098382.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a40.bin
a3a7fd329a179441457aea1a8b34a9ce763eccc4df84b25816fd831e42aef428		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A40 10924 bytes

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